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Related to Nagyagite: Calaverite


n.1.(Min.) A mineral of blackish lead-gray color and metallic luster, generally of a foliated massive structure; foliated tellurium. It is a telluride of lead and gold.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Nagyagite from the Emperor mine has been known since the 1944 edition of Dana's System of Mineralogy, but has not been reported since then.
Nagyagite [Pb.sub.5]Au(Sb,Bi)[Te.sub.2][S.sub.6] (OV)